This document discusses airline market segmentation. It begins by explaining the airline business model, including transportation of passengers and cargo, and how technology has impacted communication and logistics. It then discusses the different types of airline customers, including consumers, passengers, and decision-makers within business travel. Key factors that influence customer decisions are also outlined, and the document emphasizes the difference between apparent and true customer needs. The rest of the document focuses on market segmentation strategies for airlines, including segmenting by travel purpose, journey length, traveler origin, and customer requirements. Business and leisure travelers are specifically compared in terms of demand elasticity and airline preferences.